- HIT8a (See other available formats)
- Regulatory Status
- V CD08.10
- Other Names
- T8, Leu2
- Mouse IgG1, κ
- Ave. Rating
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- Product Citations
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CD8a is a 32-34 kD type I glycoprotein. It forms a homodimer (CD8a/a) or heterodimer (CD8a/b) with CD8b. CD8, also known as T8 and Leu2, is a member of the immunoglobulin superfamily found on the majority of thymocytes, a subset of peripheral blood T cells, and NK cells (which express almost exclusively CD8a homodimers). CD8 acts as a co-receptor with MHC class I-restricted T cell receptors in antigen recognition and T cell activation and has been shown to play a role in thymic differentiation. Two domains in CD8a are important for function: the extracellular IgSF domain binds the α3 domain of MHC class I and the cytoplasmic CXCP motif binds the tyrosine kinase p56 Lck.Product Details
- Human, Cross-Reactivity: Chimpanzee, Marmoset
- Antibody Type
- Host Species
- Phosphate-buffered solution, pH 7.2, containing 0.09% sodium azide.
- The antibody was purified by affinity chromatography and conjugated with Alexa Fluor® 700 under optimal conditions.
- 0.5 mg/ml
- Storage & Handling
- The antibody solution should be stored undiluted between 2°C and 8°C, and protected from prolonged exposure to light. Do not freeze.
FC - Quality tested
- Recommended Usage
Each lot of this antibody is quality control tested by immunofluorescent staining with flow cytometric analysis. The suggested use of this reagent is ≤1.0 µg per million cells in 100 µl volume. It is highly recommended that the reagent be titrated for optimal performance for each application.
* Alexa Fluor® 700 has a maximum emission of 719 nm when it is excited at 633 nm / 635 nm. Prior to using Alexa Fluor® 700 conjugate for flow cytometric analysis, please verify your flow cytometer's capability of exciting and detecting the fluorochrome.
Alexa Fluor® and Pacific Blue™ are trademarks of Life Technologies Corporation.
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- Excitation Laser
Red Laser (633 nm)
- Application Notes
Clone HIT8a recognizes the alpha chain of CD85. It does not block the binding of RPA-T8 antibody to CD8a.
Additional reported applications of this antibody (for the relevant formats) include: immunohistochemical staining of acetone-fixed frozen tissue sections5,6. This clone was tested in-house and does not work on formalin fixed paraffin-embedded (FFPE) tissue.
- Application References
- Schlossman S, et al. Eds. 1995. Leucocyte Typing V. Oxford University Press. New York.
- Knapp W. 1989. Leucocyte Typing IV. Oxford University Press New York.
- Barclay N, et al. 1997. The Leucocyte Antigen Facts Book. Academic Press Inc. San Diego.
- Awasthi, S., et al. 2011. J. Virol 85:10472. PubMed
- Coppieters KT, et al. 2012. J. Exp. Med. 209:51. (IHC, epitope)
- Suzuki F, et al. 2012. Arthritis Res. Ther. 14:R48. (IHC)
- Product Citations
AB_528884 (BioLegend Cat. No. 300919)
AB_528885 (BioLegend Cat. No. 300920)
- Ig superfamily, homodimer or heterodimer with CD8β, 32-34 kD
Majority of thymocytes, T cell subset, NK cells
- MHC class I co-receptor, thymic differentiation, T cell activation
- MHC Class I molecules
- Cell Type
- Dendritic cells, NK cells, T cells, Thymocytes, Tregs
- Biology Area
- Molecular Family
- CD Molecules
- Antigen References
1. Barclay N, et al. 1993. The Leucocyte Antigen FactsBook. Academic Press Inc. San Diego.
- Gene ID
- 925 View all products for this Gene ID
- View information about CD8a on UniProt.org
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